/* Declarations for shared/bands.mjs — imported by both the app (TypeScript)
   and the build pipeline (plain Node ESM), so the band table exists once. */

export interface BandSpec {
  band: number;
  phase: number;
  maxFreq: number;
  levels: string[];
}

export const BANDS: BandSpec[];
export const REFERENCE_BAND: number;
export const ALWAYS_AVAILABLE: Set<string>;

export function bandForPhase(phase: number): number;
export function bandForUnit(unitId: string): number;
export function ceilingForBand(band: number): number;

export function bandOf(word: {
  source: string;
  freqRank: number | null;
  level?: string | null;
}): number;